Laminar deep wave generator
AssigneeXerox Corporation
InventorNicolas Gueco Gomez
Life of this patent
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Abstract
For use in soldering the backplanes of printed circuit or other type electronic boards, a solder wave generator is disclosed with opposed side jet walls. The side jet configuration, because of opposed jet flow, provides an inertia necessary to balance the side forces and the pressure developed by the central pool of fluid, in this instance solder. The central pool, as supported by the side flow, is nearly stationary and the width of the pool can be varied substantially without increasing the total flow rate or the head of the pumping system.
Claims6
Apparatus for generating a near stationary central pool of liquid in a wave generator comprising
- means for imparting a motive force to a liquid,
- a first generally cylindrical support means positioned transverse to the flow of the liquid for dividing the moving flow of liquid,
- a vertically disposed conduit means for constraining the flow of liquid to the shape of said first support means so as to generate first and second side jets of liquid, said conduit means being higher at the upper extremities thereof than the first support means and spaced apart from said first support means to form an opening for the outflow of said liquid, said liquid flowing out and over the sides of said conduit means due to the force of gravity, the pool of liquid formed at the center of the outflow opening being nearly stationary.
A laminar deep wave generator comprising:
- a vertically disposed conduit means for liquid flow;
- a body of generally cylindrical cross-section disposed within the exit end of and transversely to said conduit, the conduit wall being relatively closely spaced from the associated portions of said body, and generally arcuately conforming to said portions and extending beyond said body;
- means to establish an upwardly directed liquid flow against said body to cause said liquid flow to split into inwardly directed jets to create a substantially stationary central pool of liquid at said exit.
In a device for applying fluid solder flux to the underside of a substrate the combination comprising:
- a vertically disposed conduit means for fluid solder flux flow;
- a body of generally cylindrical cross-section disposed within the exit end of and transversely to said conduit, the conduit wall being relatively closely spaced from the associated portions of said body, and generally arcuately conforming to said portions and extending beyond said body;
- means to establish an upwardly directed fluid solder flux flow against said body to cause said flux flow to split into inwardly directed jets to create a substantially stationary central pool of fluid solder flux at said exit where said substrate may be operatively associated with said pool.
Dependencies are inferred from the claim text.